Operating mechanism for rotary ovens.



B. F; FISH. OPERATING MECHANISM FORROTARY OVENS. APPLICATION FILED JUNE 29, 19oa.

924,753. Patented June 15, 1909.

. 2 SHEETS-SHEET 1. L J I; I

J WUZ, 6 10 14/ a wemtoz alien Lu o B. P. FISH.

OPERATING MECHANISM FOR ROTARY OVENS.

APPLICATION FILED JUNE 29, 1908.

24 753 Patented June 15, 1909..

2 SHEETS-SHEET 2.

alifo'cnw o BENJAMIN FRANKLIN FISH, OF CHICAGO, ILLINOIS.

OPERATING LEECHANISM FOR ROTARY OVENS.

Specification of Letters Patent. Application filed June 29, 1908. Serial No. 440,856,

To all whom it may concern:

Be it known that I, BENJAMIN FRANKLIN FIsH, a cltizen of the United States, residing at Ch cago, in the county of Cook, and State of Illinois, have invented certain new, and useful Improvements in O crating Mechanism for Rotary Ovens; an I do declare the following to be a full, clear, and exact descnption of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in operating mechanism for rotary ovens.

' The object of the invention is to provide an auxiliary operating mechanism in connection with the main operating mechanism, and means whereby said main operatin mechanism is thrown out of gear and said auxiliary mechanism simultaneously thrown into gear, and vice versa, thereby permitting the rotary supporti mechanism within the oven to be operatefi by the auxiliary mechanism when desired.

With this and other objects in view, the invention consists of certain novel features of construction, combination and arrangement of parts as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawings, Figure 1 is a front elevation of an oven showing the application of my invention thereto; Fig. 2 is a top plan view of the same showing the parts arranged as when operated by the main driving mechanism; Fig. 3 is a horizontal sectional view on the line 33 of Fig. 1; Fig. 4 is a top plan view of a portion of the operating mechanism showing the arrangement of the clutch devicewhen the parts are operated by hand; Fig. 5 is a plan view of a modified form of hand operating mechanism; Fig. 6 is a front view of the same; and Fig. 7 is a hill view of another modified form of hand operating mechanism. I

w Referring more particularly to the drawings, 1 denotes the oven, which may be of the usual or any referred constructlon and has in its front side a door, 2, having connected thereto a suitable opening and closing mechanism, 3. Revolubly mounted in the top of the oven is a tray supporting'shaft, 4, on the lower end of which and at a suitable position in the oven is mounted a supporting tray, 5, upon which the loaves of bread or other material to be baked are laced, and by means of which they are revo vecLor car- Patented June 15,1909.

1 ried around in the oven during the baking process.

On the upper end of the shaft, 4, is fixedly atively engaged a worm, 7, mounted on the tray operating shaft, 8, which is journaled in suitable bearing brackets on the top of the oven. On the tray operating shaft is fixedl mounted a bevel gear pinion, 9, with whic is engaged a similar pinion, 10, fixed on the end of a main drive shaft, 12, which is formed in sections, each section of which is mounted in suitable bearing brackets, 13. On the section of the shaft opposite to that upon which the gear pinion, 10, is arranged, is fixed a driving pulley or gear, 14, which is connected by a driving belt or the like, to a suitable motor or source of power whereby said pulley end of the shaft is continuously driven.

On the inner end of the pulley section of the shaft, 12, is fixedly mounted one member, 15, -of a clutch connection, the opposite member, 16, of which is slidably engaged with the inner end of the pinion section of the main drive shaft, as shown. The member, 16, of the clutch is slidably connected to the shaft-by means of a spleen or feather, whereby this section of the shaft causedto turn with the clutch member when the latter is shifted into engagement with the clutch member, 15, on the end of the constantlydriven section of the drive shaft.

On the forward end of the tray-operating shaft, 8, is slidably mounted one member, 17, of a clutch connection said member 17 being suitably keyed or spleened to slide on the shaft, 18, and said clutch member is adapted to be brought into engagement with a clutch member, 18, which is fixedly mounted on the adjacent end of a short shaft, 19, of an auxiliary operating mechanism. The shaft, 19, is mounted in suitable bearing brackets, 20, on the to of the oven, and on the outer end pinion, 20. The pinion, 20, is engaged with and operated by a pinion 21 on the end of a connecting shaft, 22, which is journaled in suitable brackets, 23, on the front of the oven and has mounted adjacent to its opposite end a bevel gear pinion, 24, which is operatively engaged with a similar pinion, 25, on an auxiliary operating shaft, 26, which is mounted in a suitable bearin formed on an extension of one of the bearing brackets, 23, on the front of the oven. On the shaft, 26, is mounted a hand wheel or other operating demounted a worm gear, 6, with which is operof said s aft, 19, is mounted a bevel gear with a lateralldy projecting arm or branch, 29,

the outer en of which is loosely engaged with the slidable member-17 of the clutch connection between the shaft, 19, and the tray operating shaft, 8, whereby when the lever is operated in one direction, the clutch member, 16, will be thrown into operative engagement with the member, 15, of the main drive shaft, while the member, 17,- will be disengaged from the member, 18,.of the clutch connection with the tray operating shaft, thereby simultaneously connecting said shaft with the main drive shaft and disconnecting the same from the auxiliary operating mechanism. In the same manner when the clutch lever is operated or swung in the opposite direction, the sections of the clutch connection of the main drive shaft will be disconnected, while the clutch connectionon the tray operating shaft will be simultaneously thrown into engagement with the clutch member on the'auxiliary operating mechanism, thereby connecting said tray operating shaft with the auxiliary operating mechanism and disconnecting the same from the main driving shaft. When the clutch connections are thus arran ed, the supporting tray may be operated y hand through the auxiliary o crating mechanism to turn the same in eit er direction, thus providing for the quick removal'of the goods from any portion of the supporting tray.

In Figs, 5 and 6 of the drawings is shown amodified construction of the auxiliary operating mechanism, the latter being shown in this instance as having an auxiliary operating shaft, 26, provided with a sprocket gear, 30, which is connected by a sprocket chain, 31, with a sprocket ear, 32, on the endof the short shaft, 19, w ich has a clutch connection with the tray operating shaft, 8, as hereinbefore described.

In Fi 7 of the drawing is shown another modifie form of the auxiliary operating mechanism in which a universal 'oint connection, 33, is provided between t e ends of the connecting shaft, 22, and the shaft, 19, which has a clutch connection with the shaft, 8, said universal 'oint connection taking the lace of the bevel gears, 20 and 21, as shown in the first figures of the drawings.

From the fore oing description, taken in connection with t e accompanying drawings, the construction and operation of the invention will be readily understood without requiring a more extended explanation.

Various changes in the form, proportion and the minor details of constructionmay be resorted to without departing from the principle or sacrificing any of the advantages of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters-Patent, is:

.1. In an operating mechanism for rotary ovens, a tray 0 crating mechanism, a main power operate drive shaft, an auxiliary and operated driving mechanism, clutches arranged in said driving mechanism, and a forked shifting lever connected with said clutches, whereby one of said mechanisms is thrown into gear and the other simultaneously thrown out of gear, and vice versa.

2. In an operating mechanism for rotary ovens, a tray operating mechanism, a main drive shaft formed in sections, a clutch connection between said sections, an auxiliary operating mechanism, a clutch mechanism between said auxiliary mechanism and said tray operating mechanism, and means to simultaneously operate said clutches to throw said driving mechanism into gear and said auxiliary operating mechanism out of connection with said tray operating mechanism, and vice versa. 1

3. In an operating mechanism forrotary ovens, a tray operating shaft, a main drive shaft formed in sections, a clutch, connection between said sections, an auxiliary operating mechanism, a clutch connection etween said auxiliary mechanism and said tray operating shaft, and a lever having means to engage and operate said clutchesto simultaneously throw said main driving shaft into gear and said auxiliar operating mechanism out of gear with sai tray operating shaft, and vice versa.

4. In an operating mechanism for rotary ovens, a supporting tray, a tray su portin shaft, a tray 0 crating shaft geare to said supporting sha t, a main drive shaft formed in sections, a clutch connection between said sections, means whereby one section of said driving shaft is geared to said tray. operating shaft, an auxiliary operating mechanism, a

clutch connection between said auxiliary mechanism and said tray operating shaft,

and a clutch o crating lever adapted to be moved in one irection to engage the clutch connection between the sections of said main and between said tray operating shaft and shaft formed in sections geared thereto, a clutch connection between said sections of the main shaft, an auxiliar operating mechanism comprising a short s aft, a clutch connection between said shaft and the tray 0 crating shaft, a manually operated sha t, means to connect said shaft with the clutch shaft of said auxiliary mechanism, and a clutch operating lever adapted to simultaneously o erater the clutch connections between sai sections of the main drive shaft auxiliary mechanism to throw said parts into and out of gear, substantially as described.

6.. In combination with an oven, a tray operating shaft arranged on the oven, a main drive shaft for operating the tray operating shaft, gearing'for connecting the two shafts, a manually operated auxiliary drive shaft, gearing for connecting the auxiliary shaft to the tray operating shaft, and means for si- 'iary drive shaft, coacting clutch multaneously connecting one of the drive shafts with the tray shafts and disconnecting the remainin shaft therefrom.

7. In corn inationwith an oven, a tray operating shaft arranged on the oven, a main drive shaft formed in sections for operatin the tray operatin shaft, coacting clutc parts secured to t e adjacent ends of the sections, earing for connectin the drive shaft to t e tray operating sha t, an auxilarts for connecting the auxiliary drive sha t to. the tray shaft, and a pivoted forked lever for simultaneously actuating the clutch parts.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

BENJAMIN FRANKLIN FISH.

Witnesses:

A. W. SAWYER F. A. ALEXANDER. 

